Derived from "PERFECTIONIST," with the second "E" replaced with "U", to add the "FUC-" sound, as in the word "FUCK".

Noun: A person who is a total prick about being a perfectionist. One who cannot finish a task without checking it over again and again, or who does something repeatedly until s/he achieves the desired result. When this behavior annoys others, the person exhibiting the behavior is a "perfuctionist".

Q: Where's Noonan?

A: Oh, he's skipping lunch today, because he's being a "perfuctionist" again. He's rewriting his proposal to present to the Board of Directors this afternoon.